EP0220910A3 - Stable tetrafluoroethylene copolymers - Google Patents

Stable tetrafluoroethylene copolymers Download PDF

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Publication number
EP0220910A3
EP0220910A3 EP86308129A EP86308129A EP0220910A3 EP 0220910 A3 EP0220910 A3 EP 0220910A3 EP 86308129 A EP86308129 A EP 86308129A EP 86308129 A EP86308129 A EP 86308129A EP 0220910 A3 EP0220910 A3 EP 0220910A3
Authority
EP
European Patent Office
Prior art keywords
tetrafluoroethylene copolymers
stable
stable tetrafluoroethylene
perfluoro
tetrafluoroethylene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86308129A
Other versions
EP0220910A2 (en
EP0220910B1 (en
Inventor
John Francis Imbalzano
Dewey Lynn Kerbow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25149009&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0220910(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP0220910A2 publication Critical patent/EP0220910A2/en
Publication of EP0220910A3 publication Critical patent/EP0220910A3/en
Application granted granted Critical
Publication of EP0220910B1 publication Critical patent/EP0220910B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F214/18—Monomers containing fluorine
    • C08F214/26—Tetrafluoroethene
    • C08F214/262—Tetrafluoroethene with fluorinated vinyl ethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/16—Auxiliary treatment of granules
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/18—Introducing halogen atoms or halogen-containing groups
    • C08F8/20—Halogenation
    • C08F8/22—Halogenation by reaction with free halogens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine

Abstract

A tetrafluoroethylene/perfluoro(alkyl vinyl)ether copolymer substantially free of unstable end groups and extractable fluoride that cause corrosion of metal surfaces.
EP86308129A 1985-10-21 1986-10-20 Stable tetrafluoroethylene copolymers Expired - Lifetime EP0220910B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US789893 1985-10-21
US06/789,893 US4743658A (en) 1985-10-21 1985-10-21 Stable tetrafluoroethylene copolymers

Publications (3)

Publication Number Publication Date
EP0220910A2 EP0220910A2 (en) 1987-05-06
EP0220910A3 true EP0220910A3 (en) 1988-08-03
EP0220910B1 EP0220910B1 (en) 1992-09-09

Family

ID=25149009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86308129A Expired - Lifetime EP0220910B1 (en) 1985-10-21 1986-10-20 Stable tetrafluoroethylene copolymers

Country Status (4)

Country Link
US (1) US4743658A (en)
EP (1) EP0220910B1 (en)
JP (3) JPS62104822A (en)
DE (1) DE3686696T2 (en)

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JPH0830097B2 (en) 1996-03-27
EP0220910A2 (en) 1987-05-06
JPH0483B2 (en) 1992-01-06
JPH03250008A (en) 1991-11-07
DE3686696D1 (en) 1992-10-15
US4743658A (en) 1988-05-10
DE3686696T2 (en) 1993-02-25
EP0220910B1 (en) 1992-09-09
JPS62104822A (en) 1987-05-15
JPH03247609A (en) 1991-11-05

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